“Over the past few years, Ari has taken on a host of new responsibilities and played an integral role in shaping the vision for the future of the agency. He is a dealmaker without peer, cares deeply about his colleagues, and knows the industry inside and out,” Shapiro said in the memo. “As we move into this next chapter, Ari is uniquely positioned to bring WME to new heights. He comes from television, but his curiosity and commitment to our leading role in the entertainment industry are extraordinary.”

Greenburg was the first trainee promoted to agent at the upstart agency, and seven years later, he was the first homegrown partner at the firm. As part of the Executive Committee at Endeavor, Greenburg helped lead the agency’s physical expansion and merger with the William Morris Agency in 2009 to form WME.

Greenburg also played a role in the growth of WME’s television department. He has spent 20 years as a television packaging agent, orchestrating for clients such as Amblin Partners, Greg Berlanti, Dan Fogelman, Michael Green, Carlton Cuse, Adam Horowitz & Edward Kitsis, Brian Koppelman & David Levien, Shawn Levy, Rob McElhenney, Marti Noxon, the Russo Bros., and Josh Singer.

He also helped package several series during his 23 years at WME, including “This Is Us,” “Westworld” “Sharp Objects,” “Jack Ryan,” “Chilling Adventures of Sabrina,” and “Riverdale.”

Greenburg personally has also packaged dozens of series, including “It’s Always Sunny in Philadelphia”, “Bob’s Burgers”, “The OC”, “Supernatural”, and many series from the DC universe, including “Arrow” and “Flash.”

Golden Globes 2019: See the Nominees (Photos)

Here is the full list of nominees in the 76th Annual Golden Globes for 2019 in all 25 categories. The awards will be handed out on Jan. 6.